Almost certain French print, possibly used as book illustration. Possible leading words: "Bergère, Chèvre, Bouc" (Shepherd, goat, buck). Very nice and clever composition and use of claire-obscure.
Found in the Netherlands, although possibly of German origin; 1920's (?) Exceptional and intriguing choice of motiv. A century later "black men" (men of African genetic origin) depicted like this by our grandparents would cause raised eye brows and considered "inappropriate, not done and controversial". A cabaret, brothel or bar scene ?
Lower left the faded signature R (or K) Ta....... . Lower right: Epreuve Artiste (artist proof)
As always: all help identifying the artists involved is very much welcomed.